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/*
* Copyright (C) 2017 Hangzhou C-SKY Microsystems co.,ltd.
*
* Licensed under the LGPL v2.1 or later, see the file COPYING.LIB
* in this tarball.
*/
#ifndef __CSKY_ATOMIC_H_
#define __CSKY_ATOMIC_H_
#include <stdint.h>
#include <sysdep.h>
typedef int8_t atomic8_t;
typedef uint8_t uatomic8_t;
typedef int_fast8_t atomic_fast8_t;
typedef uint_fast8_t uatomic_fast8_t;
typedef int16_t atomic16_t;
typedef uint16_t uatomic16_t;
typedef int_fast16_t atomic_fast16_t;
typedef uint_fast16_t uatomic_fast16_t;
typedef int32_t atomic32_t;
typedef uint32_t uatomic32_t;
typedef int_fast32_t atomic_fast32_t;
typedef uint_fast32_t uatomic_fast32_t;
typedef int64_t atomic64_t;
typedef uint64_t uatomic64_t;
typedef int_fast64_t atomic_fast64_t;
typedef uint_fast64_t uatomic_fast64_t;
typedef intptr_t atomicptr_t;
typedef uintptr_t uatomicptr_t;
typedef intmax_t atomic_max_t;
typedef uintmax_t uatomic_max_t;
# define __arch_compare_and_exchange_bool_8_int(mem, newval, oldval) \
(abort (), 0)
# define __arch_compare_and_exchange_bool_16_int(mem, newval, oldval) \
(abort (), 0)
# define __arch_compare_and_exchange_bool_32_int(mem, newval, oldval) \
({ __typeof(mem) _mem = (mem); \
__typeof(oldval) _oldval = oldval; \
__typeof(newval) _newval = newval; \
register __typeof(oldval) _a0 __asm__ ("a0") = _oldval; \
register __typeof(newval) _a1 __asm__ ("a1") = _newval; \
register __typeof(mem) _a2 __asm__ ("a2") = _mem; \
__asm__ __volatile__ ("trap 2;" \
: "+r" (_a0) : "r" (_a1) , "r" (_a2) \
: "a3", "memory"); \
_a0; })
# define __arch_compare_and_exchange_bool_64_int(mem, newval, oldval) \
(abort (), 0)
#define __arch_compare_and_exchange_val_8_int(mem, newval, oldval) \
(abort (), 0)
#define __arch_compare_and_exchange_val_16_int(mem, newval, oldval) \
(abort (), 0)
#define __arch_compare_and_exchange_val_32_int(mem, newval, oldval) \
({ __typeof (mem) _mem = (mem); \
__typeof (*mem) __gret = *_mem; \
unsigned int _tmp = 0; \
__typeof (oldval) _oldval = oldval; \
__typeof (newval) _newval = newval; \
register __typeof (oldval) _a0 __asm__ ("a0") = _oldval; \
register __typeof (newval) _a1 __asm__ ("a1") = _newval; \
register __typeof (mem) _a2 __asm__ ("a2") = _mem; \
__asm__ __volatile__ ("1:\n\t" \
"ldw %1, (%4, 0x0)\n\t" \
"cmpne %1, %0\n\t" \
"bt 2f\n\t" \
"mov %2, %0\n\t" \
"trap 2\n\t" \
"cmpnei %0, 0\n\t" \
"mov %0, %2\n\t" \
"bt 1b\n\t" \
"2: \n\t" \
:"+r" (_a0), "+r"(__gret), "+r" (_tmp) :"r" (_a1) , "r" (_a2) \
: "a3", "memory"); \
__gret; })
# define __arch_compare_and_exchange_val_64_int(mem, newval, oldval) \
(abort (), 0)
# define atomic_compare_and_exchange_bool_acq(mem, new, old) \
__atomic_bool_bysize (__arch_compare_and_exchange_bool, int, \
mem, new, old)
# define atomic_compare_and_exchange_val_acq(mem, new, old) \
__atomic_val_bysize (__arch_compare_and_exchange_val, int, \
mem, new, old)
#endif
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